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100 percent effort

One's maximum amount of attention, energy, and determination toward some attempt; one's absolute best effort. Sometimes written as "one hundred percent effort" or "100% effort." OK, team, if we're going to win this game, each and everyone of us will have to give 100 percent effort! I always give 100% effort 100% of the time! If he says he gave this report 100% effort, he's lying—just look at all these typos and spelling mistakes!
See also: 100, effort, percent

a head

Per person, as of the price of something. The dinner is $40 a head—can you two afford that? Please tell me that this is the cost a couple and not the cost a head. We would be bringing five people to this event, so we simply can't go if it's $75 a head.
See also: head

a/one hundred percent

Absolutely or completely; all the way. I'm one hundred percent certain this is the best course of action. I agree with their decision a hundred percent. Are you sure you're one hundred percent OK with this? Because we don't have to go through with it if you don't want to.
See also: hundred, one, percent

as per

In accordance with. Charlie stood me up tonight, as per usual. Please pay your rent on time, as per the terms of the lease.
See also: per

as per (something)

In accordance with something. As per the doctor's orders, I'm going to stay home and rest today.
See also: per

as per usual

As typically happens; as is usually the case. As per usual, my boyfriend didn't call me like he said he would. I'll be eating lunch outside on the picnic table, as per usual.
See also: per, usual


1. vulgar slang An act or instance of oral sex, especially fellatio. I hear she gives great head. I was hoping I'd get some head at least, but my date wouldn't even kiss me at the end of the night.
2. vulgar slang The glans penis. You need to stop thinking with the head in your pants and start using the one on your neck.
3. slang A habitual user or addict (of something). Used in combination with other words. He turned into a real pothead during college. This neighborhood has a real problem with crackheads.
4. slang An enthusiast (of something). Used in combination with other words. I like tinkering with cars, but I wouldn't call myself a gearhead or anything.
5. informal A headache. Could you be a bit quieter? I've got quite a head this morning.
6. slang The toilet. Originally a nautical term. Man, I've gotta hit the head after all those drinks! Ah, Joe just went to the head—you just missed him.

one per customer

A sales policy allowing only one of a particular product to be sold per customer. A: "I'd like to buy two of those laptops, please." B: "I'm sorry. Because of stock shortages, it is only one per customer for the time being."
See also: customer, one, per

one percent

The top 1% of the wealthiest people in a population. It's no secret that the system is rigged to favor and benefit the one percent, the people who already have the most money and need the least help to begin with!
See also: one, percent

per capita

By, of, or for each person in a given population. The government spends more per capita on healthcare than any other country in the world. Though the nation is tiny, it has the highest per capita income in all of Europe.
See also: per

per curiam

From Latin, literally, "by the court," indicating decisions delivered unanimously by an appellate court as a whole, with no single judge as its author. In their unanimous per curiam opinion, the Supreme Court upheld the lower court's decision and instructed the disgraced politician to pay $30 million in damages.
See also: per

per diem

An amount of money given by an organization to someone, typically an employee, to pay for expenses incurred while traveling. The phrase is Latin for "per day." Pro athletes usually get a nominal per diem while they're on road trips. The company won't give you a per diem for your business trip, but keep all of your receipts—you can submit them for reimbursement afterward.
See also: diem, per

per head

Per person, as of the price of something. The dinner is $40 per head—can you two afford that?
See also: head, per

per se

In and of itself; as such; exactly. Commonly used in negative sentences to explain that isn't exactly what was suggested. From the Latin per sē, literally "by itself." It's not a personal parking space, per se, but rather a designated area reserved for team members to park in. A: "Will I earn a degree from this program?" B: "Not a degree, per se. You'll get a professional certification that will allow you to work in the field."
See also: per

per stirpes

From Latin, literally, "by roots," indicating property and assets that are to be divided equally among the surviving descendants within a branch of one's family. I leave my entire estate to my three children, per stirpes.
See also: per
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

*(big) head

a hangover. (*Typically: get ~; have ~; give someone ~.) Oh, man, that booze gave me a big head! Tom has a head this morning and won't be coming into work.

(a) head

 and per head
[for] a person; [for] an individual. How much do you charge per head for dinner? It costs four dollars a head.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

a/per ˈhead

for each person: The meal shouldn’t cost more than $30 a head.
See also: head, per

a/one hundred per ˈcent

completely: I agree with you one hundred per cent.
See also: cent, hundred, one, per

as per something

following something that has been decided: The work was carried out as per instructions.
See also: per, something

as per ˈusual/ˈnormal

(spoken) in the usual or normal manner: ‘What time is the lesson?’ ‘Thursday at 3 o’clock, as per usual.’‘Is he in a bad mood this morning?’ ‘Yes, as per normal.’
See also: normal, per, usual
Farlex Partner Idioms Dictionary © Farlex 2017


1. n. a headache. Music that loud gives me a head.
2. and a head n. a hangover. (Always with a in this sense.) How do you get rid of a head so you can go to work?
3. n. a toilet; a restroom. (Originally nautical. Usually with the.) Ralph is in the head. He’ll be back in a minute.
4. n. a member of the drug culture; a hippie or a person who drops out of mainstream society because of drug use. (From the 1960s and 1970s.) You still see a few heads around, even today.
5. n. a smart person; an intellectual person. I’m no head, but I am sure you made a mistake in your addition.

a head

See head
See also: head
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
See also:
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